| Llantwit Major to Pottsville (Pennsylvania) | 3,417.91 mi (5,500.60 km) |
| Llantwit Major to Poughkeepsie (New York) | 3,280.91 mi (5,280.11 km) |
| Llantwit Major to Poulsbo (Washington) | 4,700.77 mi (7,565.16 km) |
| Llantwit Major to Poway (California) | 5,354.41 mi (8,617.09 km) |
| Llantwit Major to Powder Springs (Georgia) | 4,078.06 mi (6,563.00 km) |
| Llantwit Major to Powell (Ohio) | 3,719.50 mi (5,985.95 km) |
| Llantwit Major to Powell (Tennessee) | 3,948.02 mi (6,353.73 km) |
| Llantwit Major to Prairie Ridge (Washington) | 4,720.44 mi (7,596.81 km) |
| Llantwit Major to Prairie Village (Kansas) | 4,227.81 mi (6,804.00 km) |
| Llantwit Major to Prairieville (Louisiana) | 4,510.48 mi (7,258.92 km) |
| Llantwit Major to Prattville (Alabama) | 4,219.31 mi (6,790.32 km) |
| Llantwit Major to Preakness (New Jersey) | 3,325.18 mi (5,351.36 km) |
| Llantwit Major to Prescott (Arizona) | 5,108.59 mi (8,221.48 km) |
| Llantwit Major to Prescott Valley (Arizona) | 5,103.37 mi (8,213.08 km) |
| Llantwit Major to Prichard (Alabama) | 4,371.38 mi (7,035.06 km) |
